SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (8): 1398-1402.DOI: 10.1016/j.cjche.2015.04.008

• 材料与产品工程 • 上一篇    下一篇

Synthesis of magnetic core-shell structure Fe3O4@MCM-41 nanoparticle by vesicles in aqueous solutions

Weiming Song, Xuesong Liu, Ying Yang, Xuejia Han, Qigang Deng   

  1. College of Chemistry and Chemical Engineering of Qiqihar University, Qiqihar 161000, China
  • 收稿日期:2014-08-21 修回日期:2015-03-19 出版日期:2015-08-28 发布日期:2015-09-26
  • 通讯作者: Weiming Song
  • 基金资助:

    Supported by theNatural Science Foundation ofHeilongjiang Province(B201010) and the Education Department of Heilongjiang Province (12511595).

Synthesis of magnetic core-shell structure Fe3O4@MCM-41 nanoparticle by vesicles in aqueous solutions

Weiming Song, Xuesong Liu, Ying Yang, Xuejia Han, Qigang Deng   

  1. College of Chemistry and Chemical Engineering of Qiqihar University, Qiqihar 161000, China
  • Received:2014-08-21 Revised:2015-03-19 Online:2015-08-28 Published:2015-09-26
  • Contact: Weiming Song
  • Supported by:

    Supported by theNatural Science Foundation ofHeilongjiang Province(B201010) and the Education Department of Heilongjiang Province (12511595).

摘要: In this study, magnetic core-shell structure Fe3O4@MCM-41 nanoparticles were synthesized with vesicles as soft templates. In the preparation, FeCl2 and tetraethy orthosilicate (TEOS) were selected as Fe processor and Si precursor, respectively. Stable vesicles first formed in 0.03 mol·L-1 1:2 mixture of anionic surfactant sodium dodecyl sulfate and cationic surfactant cetyltrimethyl ammonium bromide. Then, TEOS was added in the vesicle aqueous solution, leading to a highly dispersed solution. After high-temperature calcination, Fe3O4@MCM-41 nanoparticles were obtained. Their structure and morphology were characterized by Saturn Digisizer, transmission electron microscope and vibrating samplemagneto-meter. The results indicate that the vesicles are spherical and their size could be tuned between 20 and 50 nm. The average grain diameter of synthesize magnetic core-shell Fe3O4@MCM-41 particles is 100-150 nm and most of the mare in elliptical shape. The dispersion of magnetic particles is very good and magnetization values are up to 33.44 emu·g-1, which are superior to that of other Fe3O4 materials reported.

关键词: Fe3O4@MCM-41, Core-shell, Nanoparticles

Abstract: In this study, magnetic core-shell structure Fe3O4@MCM-41 nanoparticles were synthesized with vesicles as soft templates. In the preparation, FeCl2 and tetraethy orthosilicate (TEOS) were selected as Fe processor and Si precursor, respectively. Stable vesicles first formed in 0.03 mol·L-1 1:2 mixture of anionic surfactant sodium dodecyl sulfate and cationic surfactant cetyltrimethyl ammonium bromide. Then, TEOS was added in the vesicle aqueous solution, leading to a highly dispersed solution. After high-temperature calcination, Fe3O4@MCM-41 nanoparticles were obtained. Their structure and morphology were characterized by Saturn Digisizer, transmission electron microscope and vibrating samplemagneto-meter. The results indicate that the vesicles are spherical and their size could be tuned between 20 and 50 nm. The average grain diameter of synthesize magnetic core-shell Fe3O4@MCM-41 particles is 100-150 nm and most of the mare in elliptical shape. The dispersion of magnetic particles is very good and magnetization values are up to 33.44 emu·g-1, which are superior to that of other Fe3O4 materials reported.

Key words: Fe3O4@MCM-41, Core-shell, Nanoparticles